Insider builds of Windows 10 are coming on quick and thick now. Just 3 days back, Build 14390 was launched and now it is Build 14393 coming on Fast Ring.
Microsoft plans to take over PC market through Windows 10
As per various analyst, there is no doubt that Microsoft can control the PC market eventually, either one way or another.
Arrival of Windows 10 Insider Preview Redstone build 14271
Arrived on the fast ring 6 days, a whole lot of improvements were made and it consists of three additions to the Microsoft Edge but there is no support given for extensions.